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Issue 24, 2014
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Seed-mediated synthesis of bimetallic ruthenium–platinum nanoparticles efficient in cinnamaldehyde selective hydrogenation

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Abstract

Core–shell RuPt (Ru core–Pt shell) and PtRu (Pt core–Ru shell) nanoparticles were prepared by decomposing in a two-step procedure a ruthenium ([Ru(COD)(COT)] (COD = 1,5-cyclooctadiene, COT = 1,3,5-cyclooctatriene)) and a platinum complex ([Pt2(dba)3] (dba = dibenzylideneacetone) or [Pt(CH3)2(COD)]) in the presence of 4-(3-phenylpropyl)pyridine (PPP) as a stabilizer and using different Ru/Pt ratios. The data obtained from a combination of several analyses (TEM, HRTEM, WAXS and IR) indicate that the so-obtained nanoparticles present a core–shell structure. The catalytic performances of these bimetallic nanoparticles for the selective hydrogenation of trans-cinnamaldehyde were investigated, which provided interesting results as well as useful information to elucidate their structure and composition. Indeed, the catalytic results evidence that: (1) the combination of both metals led in some cases to a synergistic effect on the selectivity of the reaction, and (2) the structure and the composition affected the selectivity of the reaction.

Graphical abstract: Seed-mediated synthesis of bimetallic ruthenium–platinum nanoparticles efficient in cinnamaldehyde selective hydrogenation

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Publication details

The article was received on 17 Dec 2013, accepted on 10 Apr 2014 and first published on 11 Apr 2014


Article type: Paper
DOI: 10.1039/C3DT53539H
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Citation: Dalton Trans., 2014,43, 9283-9295
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    Seed-mediated synthesis of bimetallic ruthenium–platinum nanoparticles efficient in cinnamaldehyde selective hydrogenation

    X. Qi, M. R. Axet, K. Philippot, P. Lecante and P. Serp, Dalton Trans., 2014, 43, 9283
    DOI: 10.1039/C3DT53539H

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